Washington earthquakes

M1.6 earthquake 38 km NNE of Amboy, Washington

A magnitude 1.6 earthquake struck 38 km NNE of Amboy, Washington on Mon, Oct 20, 1986, 12:18 PM PDT (19:18 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M3.0 37 km NNE of Amboy, Washington. This one was a foreshock.

Amboy forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (md), micro
Local time
UTC
1986-10-20 19:18:07 UTC
Depth
-0.6 km (-0.4 mi), shallow
Epicenter
46.203° N, 122.187° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.3 km horizontally, 0.2 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
67°
Stations used
13

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 122 in the 60 days after this one and 65 in the 30 days before it.

After

  1. 3.037 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  2. 1.538 km NNE of Amboy, Washington · 14581 days ago · -1 km deep · 0 km away
  3. 3.138 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  4. 2.638 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  5. 3.138 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  6. 2.837 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  7. 2.038 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  8. 1.738 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  9. 2.637 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  10. 3.137 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  11. 2.438 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  12. 2.537 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  13. 3.137 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  14. 2.538 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  15. 3.037 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  16. 3.038 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  17. 2.037 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  18. 3.237 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  19. 3.138 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  20. 3.238 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  21. 2.337 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  22. 1.838 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  23. 2.837 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  24. 1.738 km NNE of Amboy, Washington · 14581 days ago · -1 km deep · 0 km away
  25. 3.038 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  26. 1.538 km NNE of Amboy, Washington · 14581 days ago · -1 km deep · 0 km away
  27. 2.337 km NNE of Amboy, Washington · 14581 days ago · -1 km deep · 0 km away
  28. 3.037 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  29. 2.138 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  30. 2.837 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  31. 2.638 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  32. 2.838 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  33. 3.137 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  34. 2.438 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  35. 2.737 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  36. 1.537 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  37. 2.738 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 0 km away
  38. 3.037 km NNE of Amboy, Washington · 14581 days ago · 0 km deep · 1 km away
  39. 3.137 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  40. 2.037 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  41. 2.437 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  42. 3.238 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  43. 2.537 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  44. 2.438 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  45. 3.138 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  46. 1.938 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  47. 1.838 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  48. 3.038 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  49. 1.938 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 1 km away
  50. 1.537 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  51. 3.038 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  52. 1.737 km NNE of Amboy, Washington · 14580 days ago · 1 km deep · 1 km away
  53. 1.837 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 1 km away
  54. 2.038 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 0 km away
  55. 2.038 km NNE of Amboy, Washington · 14580 days ago · -1 km deep · 1 km away
  56. 2.437 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 1 km away
  57. 2.138 km NNE of Amboy, Washington · 14580 days ago · -2 km deep · 1 km away
  58. 2.338 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 1 km away
  59. 2.437 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 1 km away
  60. 2.136 km NNE of Amboy, Washington · 14580 days ago · 0 km deep · 2 km away

The first 60 of 122.

Before

  1. 2.038 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  2. 2.338 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  3. 2.138 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  4. 2.938 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  5. 2.537 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  6. 1.938 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  7. 2.537 km NNE of Amboy, Washington · 14582 days ago · -1 km deep · 0 km away
  8. 2.738 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  9. 2.338 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  10. 1.938 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  11. 2.538 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  12. 1.838 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  13. 2.238 km NNE of Amboy, Washington · 14582 days ago · 0 km deep · 0 km away
  14. 2.337 km NNE of Amboy, Washington · 14582 days ago · 1 km deep · 0 km away
  15. 1.738 km NNE of Amboy, Washington · 14582 days ago · -1 km deep · 0 km away
  16. 2.938 km NNE of Amboy, Washington · 14583 days ago · -1 km deep · 0 km away
  17. 2.738 km NNE of Amboy, Washington · 14583 days ago · 0 km deep · 0 km away
  18. 1.638 km NNE of Amboy, Washington · 14583 days ago · 0 km deep · 0 km away
  19. 2.538 km NNE of Amboy, Washington · 14583 days ago · -1 km deep · 0 km away
  20. 1.638 km NNE of Amboy, Washington · 14584 days ago · 0 km deep · 0 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10219643. Read Tue, Sep 22, 2026, 7:23 AM UTC.